Could and couldn't
Would and wouldn't
Polite offers and requests
Number pronunciation
100

I ___________ swim when I was four. I learned at 3. 

COULD
100

I asked him to run faster, but he ___________ at first. 

Wouldn't

100

________ you pass me the salt please? 

Could (polite request)

100

1,052

One thousand and fifty two 

200

I _________ run when I was a baby. I didn't even know how to walk. 

couldn't 

200

As children, we ________ play together every day. 

would

200

________ you like to go out with me sometime? I think it would be really fun. 

WOULD (polite offer) 

200

20,444

twenty thousand, four hundred and forty four. 

300

___________ you see her? She was in front of you!!

COULNDN'T

300

No one knew that one day he ________ be rich. 

would

300

________ you be silent please? I'm really trying to concentrate. 

COULD (polite request) 

300

134,456

One hundred and thirty four thousand, four hundred and fifty six 

400

It was raining so we ___________ leave. 

couldn't

400

If you asked me I _______ say you are crazy. Be more careful. 

I'd 

400

_____ you like some tea? You seem thirsty! 

Would (polite offer) 

400

999,999

Nine hundred and ninety nine thousand, nine hundred and ninety nine. 

500
_________ you pass all your exams? 

Could

500

Do you think he _______ help? 

I'm sure he ________ if you asked him. 

WOULD / WOULD

500

_________ you tell him that I left because I was tired please? 

Could (polite request) 

500

1,965,435

One million, nine hundred and sixty five, four hundred and thirty five 

M
e
n
u